Remove obsolete "PhabricatorAuthLoginHandler"

Summary: Depends on D20096. Reverts D14057. This was added for Phacility use cases in D14057 but never used. It is obsoleted by {nav Auth > Customize Messages} for non-Phacility use cases.

Test Plan: Grepped for removed symbol.

Reviewers: amckinley

Reviewed By: amckinley

Differential Revision: https://secure.phabricator.com/D20099

src/__phutil_library_map__.php

@@ -2272,7 +2272,6 @@ phutil_register_library_map(array(
     'PhabricatorAuthLinkController' => 'applications/auth/controller/PhabricatorAuthLinkController.php',
     'PhabricatorAuthListController' => 'applications/auth/controller/config/PhabricatorAuthListController.php',
     'PhabricatorAuthLoginController' => 'applications/auth/controller/PhabricatorAuthLoginController.php',
-    'PhabricatorAuthLoginHandler' => 'applications/auth/handler/PhabricatorAuthLoginHandler.php',
     'PhabricatorAuthLoginMessageType' => 'applications/auth/message/PhabricatorAuthLoginMessageType.php',
     'PhabricatorAuthLogoutConduitAPIMethod' => 'applications/auth/conduit/PhabricatorAuthLogoutConduitAPIMethod.php',
     'PhabricatorAuthMFAEditEngineExtension' => 'applications/auth/engineextension/PhabricatorAuthMFAEditEngineExtension.php',
@@ -8019,7 +8018,6 @@ phutil_register_library_map(array(
     'PhabricatorAuthLinkController' => 'PhabricatorAuthController',
     'PhabricatorAuthListController' => 'PhabricatorAuthProviderConfigController',
     'PhabricatorAuthLoginController' => 'PhabricatorAuthController',
-    'PhabricatorAuthLoginHandler' => 'Phobject',
     'PhabricatorAuthLoginMessageType' => 'PhabricatorAuthMessageType',
     'PhabricatorAuthLogoutConduitAPIMethod' => 'PhabricatorAuthConduitAPIMethod',
     'PhabricatorAuthMFAEditEngineExtension' => 'PhabricatorEditEngineExtension',

src/applications/auth/controller/PhabricatorAuthStartController.php

@@ -172,23 +172,6 @@ final class PhabricatorAuthStartController
         $button_columns);
     }
 
-    $handlers = PhabricatorAuthLoginHandler::getAllHandlers();
-
-    $delegating_controller = $this->getDelegatingController();
-
-    $header = array();
-    foreach ($handlers as $handler) {
-      $handler = clone $handler;
-
-      $handler->setRequest($request);
-
-      if ($delegating_controller) {
-        $handler->setDelegatingController($delegating_controller);
-      }
-
-      $header[] = $handler->getAuthLoginHeaderContent();
-    }
-
     $invite_message = null;
     if ($invite) {
       $invite_message = $this->renderInviteHeader($invite);
@@ -202,7 +185,6 @@ final class PhabricatorAuthStartController
 
     $title = pht('Login');
     $view = array(
-      $header,
       $invite_message,
       $custom_message,
       $out,

src/applications/auth/handler/PhabricatorAuthLoginHandler.php

@@ -1,36 +0,0 @@
-<?php
-
-abstract class PhabricatorAuthLoginHandler
-  extends Phobject {
-
-  private $request;
-  private $delegatingController;
-
-  public function getAuthLoginHeaderContent() {
-    return array();
-  }
-
-  final public function setDelegatingController(AphrontController $controller) {
-    $this->delegatingController = $controller;
-    return $this;
-  }
-
-  final public function getDelegatingController() {
-    return $this->delegatingController;
-  }
-
-  final public function setRequest(AphrontRequest $request) {
-    $this->request = $request;
-    return $this;
-  }
-
-  final public function getRequest() {
-    return $this->request;
-  }
-
-  final public static function getAllHandlers() {
-    return id(new PhutilClassMapQuery())
-      ->setAncestorClass(__CLASS__)
-      ->execute();
-  }
-}